How to describe a picture?

1. III-Interpretation/Assumption/hypothesis

1.1. Message

1.2. Contrast

1.3. relation with the context

2. IV-Personal opinion + conclusion

3. I-Presentation

3.1. the author and his biography

3.2. Context

3.3. type of document and when

4. II-Description

4.1. Where?

4.2. Light/Color/Value

4.3. Shape/Form

4.4. Space

4.5. Line

4.6. Characters

4.7. Objects